package practicedemo77;

import java.util.Objects;

public class Test{
    public static void main(String[] args) {
        String a = null;
        String b = null;
//        System.out.println(Objects.equals(a, b));
        System.out.println(Objects.isNull(a));
        System.out.println(Objects.nonNull(b));
    }
}
